Luković S, Baucal A, Tišma B. Dynamic assessment of the zone of proximal development using the TIP-1 as an instrument. PP [Internet]. 2013 Dec. 26 [cited 2024 Apr. 24];6(4):371-83. Available from: https://primenjena.psihologija.ff.uns.ac.rs/index.php/pp/article/view/1094